Validation rules

BR-DEC-10

The sum of document-level allowances (BT-107) uses more than 2 decimal places — EN 16931 allows at most 2.

Rule
BR-DEC-10official EN 16931 / XRechnung rule
Severity
error
Business term
BT-107 — Sum of allowances on document level
Field in your JSON
invoice.allowances
Detected by
tier 3 — KoSIT validator (authoritative)
Reachability
Only reachable when validating your own XML — normbill-generated documents cannot trigger it

normbill computes this total itself and formats it with exactly 2 decimals.

How to fix it

Round cbc:AllowanceTotalAmount to 2 decimals.

BR-DEC-10 auf Deutsch — was bedeutet der Fehler?

Die Summe der Nachlässe auf Dokumentebene (BT-107) hat mehr als 2 Nachkommastellen. EN 16931 erlaubt höchstens 2 Dezimalstellen — der KoSIT-Validator lehnt die Rechnung ab.

So beheben Sie den Fehler

Runden Sie cbc:AllowanceTotalAmount auf 2 Nachkommastellen. normbill berechnet diese Summe selbst und gibt sie immer mit exakt 2 Stellen aus.

Official sources

Every 422 from the API lists the rule id, the path in your request JSON, a plain-language message and a suggested fix — see the docs overview for the report format.

Or try it live: drop any XRechnung XML on the free validator — same KoSIT-backed report, no account.

Spotted something?

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